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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 177 (Instrument Panel System Displays, Gauges And Console) >> Diagnostic Information and Procedures >> Speedometer and/or Odometer Inaccurate or Inoperative

Speedometer and/or Odometer Inaccurate or Inoperative

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
Speedometer and/or Odometer Inaccurate or Inoperative

Step Action Yes No
Schematic Reference: Instrument Cluster Schematics 
Connector End View Reference: Instrument Panel, Gages and Console Connector End Views 
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2
  1. Install a scan tool.
  2. Raise vehicle drive wheels. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Start the engine.
  4. Place the transmission into drive for automatic transmission and third gear for manual transmission.
  5. With the scan tool, observe the Vehicle Speed Sensor parameter in the powertrain control module (PCM) Engine Data, data list.
Does the vehicle speed parameter match the speedometer display?		 Go to Step 3  Go to Step 4 
3 Does the odometer operate properly? Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 4 
4 Replace the instrument panel cluster (IPC). Refer to Control Module References in Computer/Integrating Systems for replacement, setup and programming.
Did you complete the replacement?		 Go to Step 5  -
5 Operate the system in order to verify the repair.
Use the scan tool in order to clear the DTCs that may have set in other modules during diagnosis.
Did you correct the condition?		 System OK Go to Step 2 
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